Website reputation report

cofus.work

Last checked 5 days ago · Point-in-time assessment

71/100Technical Safety ScoreIndependent technical assessment, not a visitor rating
Would you recommend this page? No community votes yet 0/0 Your vote is for this page in this report only—not the entire website. No account required · One vote per browser.
Captured homepage of cofus.work in the current scan
Website screenshot from the current report

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● Evidence is limited

What is this website?

本サイトは比嘉翼(屋号COFUS:こふす)の制作物をまとめたポートフォリオとして、またはその他生産的活動に関する情報を発信する場所として運用しているサイトです。

No listed local patterns observedHomepage-only analysis is not a malware clearance. Read the scope and findings below.

71/100Safety Score
75%Evidence Confidence
Trust Radar evidence profile Eight evidence dimensions from zero to one hundred. Exact values surround the chart. Threat Intelligence55 Domain History86 Infrastructure90 Website Security95 Security Hygiene50 Transparency49 Reputation50 Operational Stability85
Trust RadarEight observed factors. Select one to inspect its evidence.

How to read this report

Safety Score evaluates observed signals. Evidence Confidence measures how complete, direct, fresh, and consistent those signals are.

No automated scan can guarantee that a website is safe.

Current report context

What changed since the last scan

  • No earlier report to compare
What this scan could verify · 6 observed, 0 unavailable
DNS observed
Registration lookup observed
Network observed
TLS observed
Website response observed
Website content observed

Unavailable and unperformed checks are not clean results. The detailed evidence below remains the source for each conclusion.

Report an inaccuracy in this report →

Independent evidence brief

What we observed about cofus.work

Updated Oct 8, 2026

The latest scan examined 8 public pages on cofus.work. Website descriptions below come from the site itself. Registration, connection and threat findings were checked separately.

Purpose and visible content

On its homepage, the site says: 本サイトは比嘉翼(屋号COFUS:こふす)の制作物をまとめたポートフォリオとして、またはその他生産的活動に関する情報を発信する場所として運用しているサイトです。

Registrar and domain history

Registered on Jan 20, 2019. Registrar: GMO Internet, Inc. d/b/a Onamae.com.

Recorded expiry date: Jan 20, 2027. Registry data can change.

Connection and hosting evidence

The checked homepage returned HTTP 200 in about 1000 ms.

A valid TLS certificate was observed, expiring Nov 21, 2026.

Threat checks and score context

External malware-provider coverage was unavailable. The report does not treat this missing check as a clean result.

Safety Score: 71/100. Evidence Confidence: 75%. These measure different things.

Community reviews of cofus.work

No approved reviews yet ☆☆☆☆☆

Visitor experiences are separate from the independent technical Safety Score.

Visitor opinions remain separate from the technical Safety Score.

Public content profile

Pages reviewed on cofus.work

8 of up to 10 pages

We sampled public pages from this website to understand its subject and contact paths. The titles and short descriptions below come from the website itself. They are not endorsements or independent safety findings.

HIGA TSUBASA – ポートフォリオ|比嘉翼(屋号COFUS:こふす)のポートフォリオサイト本サイトは比嘉翼(屋号COFUS:こふす)の制作物をまとめたポートフォリオとして、またはその他生産的活動に関する情報を発信する場所として運用しているサイトです。 お知らせ|比嘉翼(屋号COFUS:こふす)のポートフォリオサイト本ページは屋号COFUS(こふす)にて発信されたお知らせの一覧ページです。リリース情報やプロジェクトに関する重要なお知らせ、また告知情報などの全てのお知らせをご覧いただけます。 プロダクト|比嘉翼(屋号COFUS:こふす)のポートフォリオサイト本ページは屋号COFUS(こふす)が個人で開発・公開してきたプロダクトの一覧ページです。ブラウザ拡張機能やWebサービス、npmパッケージ、ボイラープレートまで、クライアントワークとは別に作り続けてきたものをまとめています。 個人開業のお知らせ|比嘉翼(屋号COFUS:こふす)のポートフォリオサイト本ページは屋号COFUS(こふす)にて発信されたお知らせ詳細ページです。リリース情報やプロジェクトに関する重要なお知らせ、また告知情報などをご覧いただけます。 Google TasksのリストをMasonryレイアウトで敷き詰めるブラウザ拡張機能「Pittiri」をリリースします|比嘉翼(屋号COFUS:こふす)のポートフォリオサイト本ページは屋号COFUS(こふす)にて発信されたお知らせ詳細ページです。リリース情報やプロジェクトに関する重要なお知らせ、また告知情報などをご覧いただけます。 Pittiri – A Browser Extension That Packs Your Google Tasks Lists into a Masonry Layout|比嘉翼(屋号COFUS:こふす)のポートフォリオサイトThis is a news article published by COFUS. Read release notes, important project updates, and announcements. サイトマップ|比嘉翼(屋号COFUS:こふす)のポートフォリオサイト本ページは屋号COFUS(こふす)の全てのコンテンツを一覧にまとめたサイトマップページです。各ページへのリンクを分かりやすくご覧いただけます。 Miwake — A Fast, Smooth Chat Viewer for Kick (kick.com) Streams|比嘉翼(屋号COFUS:こふす)のポートフォリオサイトThis is a news article published by COFUS. Read release notes, important project updates, and announcements.

Public page evidence

Topics and keywords observed on cofus.work

6 phrases

These phrases were extracted locally from sampled public page metadata. They are observations, not search-volume or ranking estimates.

屋号cofus こふす のポートフォリオサイトTitle9 sampled pages
比嘉翼 屋号cofusTitle9 sampled pages
本ページは屋号cofus こふすMeta description5 sampled pages
googleTitle, H12 sampled pages
pittiriTitle, H12 sampled pages
リリース情報やプロジェクトに関する重要なお知らせMeta description3 sampled pages

At a glance

Key findings

✓

Report is current

The displayed evidence comes from the published immutable scan.

i

Confidence is separate

Unavailable evidence is shown as missing and never counted as clean.

!

Verify before sensitive actions

Check the exact URL and context before payments, credentials, or downloads.

Fully explainable

Why this score?

Versioned weights
Threat IntelligenceWeight 25%
55/100

Threat providers were unavailable. The neutral uncertainty baseline is not a clean verdict.

Domain HistoryWeight 10%
86/100

Domain registration age and expiry were checked.

InfrastructureWeight 10%
90/100

Observed DNS records and network address were checked.

Website SecurityWeight 15%
95/100

Observed certificate validity and TLS protocol were checked.

Security HygieneWeight 15%
50/100

Observed security header values were checked for basic protective settings. Empty values, disabled HSTS and unrecognized values receive no credit. This is not a complete browser-policy validation.

TransparencyWeight 5%
49/100

Observed site metadata and About page were checked. Publisher-supplied details are not independently verified.

ReputationWeight 5%
50/100

Popularity is weak context, not proof of safety. Unranked sites use a neutral baseline.

Operational StabilityWeight 15%
85/100

Observed HTTP status and final connection scheme were checked.

Server-side analysis

Automated security checks

Local antivirus and phishing checks

ClamAV · homepage HTMLNo signature match in the sampled HTML
Engine version1.5.4
Signature database date (UTC)2026-10-08T06:24:12+00:00
HTML bytes submitted135,133
Phishing.Database · exact hostnameNot listed in this snapshot
Feed downloaded (UTC)2026-10-08T06:00:17+00:00
Hosts in local snapshot386,082

Sampled scripts and pages

Resource analysis incomplete

6 resources checked · 16 script links observed on the homepage. Partial resource coverage.

ClamAV inspects the fetched homepage HTML on our server. New scans also sample up to four linked scripts and two collected internal pages, with size and time limits. Scripts are not executed. Other downloads, private server files and logged-in pages remain outside this check. A signature match needs investigation and can be a false positive. No match is not a whole-site safety guarantee.

Exact hostname lookup uses a downloaded Phishing.Database snapshot. It does not send this domain to an external lookup API or mark sibling subdomains as harmful. Not listed does not mean safe. Snapshot age is download age, not proof that every entry was recently revalidated.

Homepage HTML only · Eight local rule families · local-security-v2

Checks use the fetched page and redirect chain. Scripts are not executed, forms are not submitted, and linked files are not downloaded. This is not a malware clearance.

Page resource inventory

Linked scripts16
Inline scripts1
Embedded frames0
External script hosts1

Counts describe the sampled HTML, not every resource loaded by the browser. External resources are common and are not automatically harmful.

No listed local patterns observed. The limited rule set cannot detect every threat or behavior.

External threat intelligence

Provider coverageNot checked

Local checks do not query external reputation databases. An unavailable check is never a clean result.

Registration

Domain information

Public RDAP observation
Canonical domaincofus.work
RegistrarGMO Internet, Inc. d/b/a Onamae.com
RegisteredJan 20, 2019
Domain age7 years
ExpiresJan 20, 2027
Registry statusesactive
Report statePublished

Infrastructure

Network & hosting

Observed endpoint, not legal location
IP address76.76.21.21
Autonomous systemUnavailable
Network organizationUnavailable
Observed countryUnavailable
CDNNot detected
Web application firewallNot detected

At a glance

Infrastructure summary

Observed during this scan

A compact view of the connection, DNS and security surface. These observations describe what the scanner could verify at scan time and do not prove ownership or ongoing availability.

HTTP response200 · https://cofus.work/
Endpoint76.76.21.21
NetworkUnavailable
CDN and WAFNot detected · Not detected
DNS surface13 records · 5 nameservers · 5 mail exchangers
Protection signals1 security headers · 2 technologies · DNSSEC unknown

Page telemetry

Observed page statistics

Safe metadata only

These counters describe the fetched response and sampled HTML. Script counts describe references in the markup, not a complete browser network log. Cookie counts cover observed response headers.

Response size135,133 bytes
HTTP check duration1,000 ms
Cookies observedUnavailable
Script resources16 · 1 external hosts
Frames and sampled checks0 frames · 6 resources checked

Encrypted transport

TLS certificate

Valid when observed
StatusValid when observed
ProtocolTLSv1.3
IssuercountryName=US, organizationName=Let's Encrypt, commonName=YR2
Valid fromAug 23, 2026
Valid untilNov 21, 2026
Certificate namescofus.work

Resolution

DNS footprint

DNSKEY status unknown

DNSKEY presence does not verify the DNSSEC signature chain. Missing records can mean no record was returned or the lookup was unavailable.

A76.76.21.21TTL —
NSns1.xserver.jpTTL —
NSns2.xserver.jpTTL —
NSns3.xserver.jpTTL —
NSns4.xserver.jpTTL —
NSns5.xserver.jpTTL —
MX1 aspmx.l.google.comTTL —
MX10 aspmx2.googlemail.comTTL —
MX10 aspmx3.googlemail.comTTL —
MX5 alt1.aspmx.l.google.comTTL —
MX5 alt2.aspmx.l.google.comTTL —
TXTgoogle-site-verification=IhowggzsOkgLrgWPL5EJ9TUuEOPQpQUyZYUl8lpxd6QTTL —
TXTv=spf1 +a:sv6006.xserver.jp +a:cofus.work +mx include:spf.sender.xserver.jp ~allTTL —

DNS observations · no external lookup API

Domain email protection

Exact-host SPF and DMARC observations help the owner investigate email impersonation risks. They are separate from website malware checks and do not change the Safety Score.

SPFPolicy record observed, not fully validated
DMARCNo matching record returned for this exact hostname

What to do next

Review the records with your mail administrator. Inventory legitimate senders and test SPF and DKIM alignment before enforcing a stricter DMARC policy. Fix duplicate records and investigate overly permissive SPF rules.

This bounded check does not send email, probe SMTP, evaluate recursive SPF includes, verify DKIM signatures or apply organizational-domain DMARC inheritance. A missing subdomain record does not prove that no inherited protection exists. A DNS timeout is unknown, not an absent record. A policy record is not proof that messages authenticate successfully.

Responsible disclosure

security.txt

RFC 9116 observation

No readable security.txt file was observed at the standard locations. This is informational and is not evidence of malware.

Browser protections

Security headers

1 observed
strict-transport-securitypresent max-age=63072000

Response headers

Cookie protections

Passive observation

No Set-Cookie header was observed on the sampled homepage response. Other pages may set cookies separately.

Detected stack

Technologies

Google Analytics 94% Next.js 96%

Versions are shown only when publicly exposed by the page or response headers. An observed version is not, by itself, proof of a vulnerability.

JavaScript library advisories

4 sampled JavaScript files checked locally with Retire.js. Database snapshot: 2026-10-08T02:40:09.646Z.

react-dom 19.2.3 No known advisories matched this version in the database snapshot.

A version match is not proof that the website is infected or that an issue is exploitable here. Owners should review the advisory, check whether their code is affected and test an update. Up to four external script files are sampled, not every dependency, inline script or dynamically loaded resource.

Recommended maintenance checks

Next.jsKeep Next.js and its runtime dependencies current, especially when server-side rendering is enabled.

Publisher supplied

Public contact details

These details were observed on the website, not independently verified as an active support channel.

Emailinfo@cofus.workSource: https://cofus.work/news/opening-a-business

Structured facts

Website identity & response

Public page metadata
Page titleHIGA TSUBASA – ポートフォリオ|比嘉翼(屋号COFUS:こふす)のポートフォリオサイト
First headingUnavailable
Description本サイトは比嘉翼(屋号COFUS:こふす)の制作物をまとめたポートフォリオとして、またはその他生産的活動に関する情報を発信する場所として運用しているサイトです。
Canonical URLhttps://cofus.work/
Final URLhttps://cofus.work/
HTTP response200 · text/html; charset=utf-8 · 1000 ms
Languageja
Structured typesNone observed
Page page detectedhttps://cofus.work/news
missing100% evidence confidence
1100% evidence confidence
ja100% evidence confidence
13100% evidence confidence
5100% evidence confidence
5100% evidence confidence
unavailable100% evidence confidence
Dns consistency.cname present100% evidence confidence
1100% evidence confidence
Local headers.permissions policy present100% evidence confidence
1100% evidence confidence
Local headers.hsts preload100% evidence confidence
63072000100% evidence confidence
Local headers.hsts include subdomains100% evidence confidence
Local headers.csp present100% evidence confidence
Local headers.cors wildcard origin100% evidence confidence
Local headers.cors present100% evidence confidence
Local headers.cors credentials with wildcard100% evidence confidence

Connection path

Redirect chain

0 recorded hops

No redirect hop was recorded for the sampled homepage.

Premium monitoring

Catch downtime and security changes automatically

Regular checks, availability history, and alert emails are reserved for Premium websites. Free reports remain point-in-time scans and do not create recurring server work.

Enable monitoring for this website

Compared with the previous scan

What changed

A comparison will appear after the next completed scan.

Explainable matching

Digital fingerprint

fingerprint-v1
quiet-orbit-wave-505

Comparable components help find technically related websites. A match does not prove common ownership.

DnsHashed private comparison value
TechnologiesHashed private comparison value

Material changes only

Change history

Show change history

No meaningful changes recorded yet.

Website icon for cofus.work

Visual evidence

Website screenshot

Screenshot of cofus.work
Captured once in an isolated browser during this scan. Visual tint is an interface overlay. The original evidence is not duplicated.

For site owners

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Questions about cofus.work

FAQ

Still have questions? Contact us →
Is cofus.work safe to visit?

The latest Safety Score is 71/100 with 75% Evidence Confidence. This is a point-in-time assessment of observed technical signals, not a guarantee. Check the exact address and avoid entering payment details if anything looks unusual.

Did the scan detect malware on cofus.work?

ClamAV found no signature match in the sampled homepage HTML. External scripts, downloads and private server files were not checked. This is not a whole-site malware clearance.

When was cofus.work registered?

The public registry record shows Jan 20, 2019. Registration details may be privacy-protected or updated later.

Did cofus.work have a valid TLS certificate?

The scanner observed a valid TLS certificate using TLSv1.3. A valid certificate alone does not establish that the site is safe.

Can a paid listing change this website's score?

No. Premium placement and owner-supplied pages are labelled separately. Technical evidence, the Safety Score and moderation decisions remain independent.

Share your experience with cofus.work

Community reviews are moderated and remain separate from the technical Safety Score.

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